Sport knife



FIG. 1 is a front view in elevation of the ornamental design of a sportknife;

FIG. 2 is a view in elevation of the right side of the sport knife shownin FIG. 1;

FIG. 3 is a view in elevation of the left side of the sport knife shownin FIG. 1;

FIG. 4 is a rear view in elevation of the sport knife shown in FIG. 1;

FIG. 5 is a top view in elevation of the sport knife shown in FIG. 1;and,

FIG. 6 is a bottom view in elevation of the sport knife shown in FIG. 1.

The ornamental design for a sport knife, as shown and described.